DE LA RECHERCHE LINDUSTRIE CEA Contribution to PIPII
DE LA RECHERCHE À L’INDUSTRIE CEA Contribution to PIP-II Olivier Napoly Commissariat à l’énergie atomique et aux énergies alternatives - www. cea. fr Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021
CEA In-Kind Contribution to PIP-II Superconducting RF CW Linac, 800 Me. V Consists of Five Types of Cryomodules Cryoplant CDS HWR 8 Cavities 162. 5 MHz Single Spoke SSR 1 X 2 16 Cavities 325 MHz Single Spoke SSR 2 X 7 35 Cavities 325 MHz Elliptical LB 650 X 9 36 Cavities 650 MHz Elliptical HB 650 X 4 24 Cavities 650 MHz 833 Me. V 516 Me. V H- Ion source 177 Me. V RFQ 2. 1 Me. V 10 Me. V 32 Me. V cting condu Super CEA IKC Room rature Tempe PIP-II is the world’s highest energy and power CW proton linac, and the U. S. first accelerator project to be built with major international contributions Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 2
The state-of-the-art PIP-II Superconducting RF Systems 2023 5. 9 m 5. 3 m 2023 5. 5 m 6. 5 m 2021 -22 9. 9 m 2022 Half Wave Resonator =0. 11 Q 0 =0. 85 x 1010 Performance validated Single Spoke SSR 1 =0. 22 Q 0 =0. 82 x 1010 Testing in progress Dates: component built Single Spoke SSR 2 =0. 47 Q 0 =0. 82 x 1010 Elliptical LB 650 =0. 61 *Q 0 =2. 4 x 1010 Elliptical HB 650 =0. 92 *Q 0 =3. 3 x 1010 *unprecedented performance requirement Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 3
PIP-II SRF Cryomodules 2023 SSR 1 HWR 2021 -22 2023 SSR 2 LB 650 HB 65 0 Cryomodule CM # Cavity # String Assy. CM Length [m] Q 0 @ 2 K Rs [Ω] QL [x 106] HWR 1 8 8 x (SC) 5. 93 8. 5 E 9 5. 6 2. 3 SSR 1 2 8 4 x (CSC) 5. 3 8. 2 E 9 10. 2 3. 0 SSR 2 7 5 SCCSCCSC 6. 5 8. 2 E 9 14. 0 5. 1 LB 650 9 4 CCCC 5. 52 2. 4 E 10 8. 0 10. 4 HB 650 4 6 CCCCCC 9. 92 3. 3 E 10 7. 9 9. 9 C = Cavity, S = Solenoid 23 Cryomodules + 4 Prototypes, 14 Cryomodules will be transported between Europe and US Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 4
CEA Scope of Work • In July 2020, the French research ministry approved the involvement of CEA in the PIP-II Linac construction and defined its budget envelope. • Within this envelope, the Scope of Work of CEA includes: the design of the LB 650 cryomodules (1+9) the procurement of cryomodule components* the assembly of the LB 650 cryomodules (1+9), including all necessary tooling the RF tests of the LB 650 cryomodules (1+9), including cryogenics and RF equipment • the system acceptance reviews and licensing of the LB 650 cryomodules (1+9) • the design of the LB transport frame, fabrication of 2 units, and road tests • the disassembly (warm couplers, cryogenic cap) and preparation of LB 650 cryomodules for shipment. • • * Many components provided by Fermilab (cf. next page). Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 5
CEA Scope of Work • The cryomodule components procured by CEA include: • • • the inter-cavity bellows and cold-warm beam line transitions the hardware, fasteners and gaskets for string assembly the strong-backs, cavity posts and supports, and C-blocks the cold and warm magnetic shields the 50 K thermal shields The 2 K, 5 K and 50 K Helium circuit pipes and bellows the superinsulation blankets the vacuum vessels the hardware, fasteners and seals for module assembly The cryomodule components provided by Fermilab include: • the RF cavities equipped with their Helium jacket including bi-metallic transition and diphasic tee, and their pick-up antenna • the RF couplers equipped with their vacuum gauge and electron pick-ups • the beamline gate valves • the frequency tuners with step-motor, piezo-mechanisms, electric cables and end-switch • the RF cables, thermal sensors, and pick-up cables • the instrumentation flanges equipped with connectors • the alignment instrumentation such as HBCAM tool kit, HBCAM optical target subassemblies • the cryogenics equipment such as valves, heat exchangers, bayonets, Helium guards and relief stack columns Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 6
CEA-Fermilab Interfaces This share of work implies many interfaces of organizational and physical natures that have a potential strong impact on cost, schedule, risk, an responsibilities • To name a few: • • • Supply chain Identification of components Acceptance of components Software and drivers Choice of cavities Codes and norms Tests procedures and equipment Title transfers Acceptance of cryomodules Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 7
CEA-Fermilab Interfaces Relevant to this Preliminary Design Review • Internal physical and organization interfaces with components provided by Fermilab: • • • 3 D models of cavities, tuners, couplers Instrumentation and RF cables routing Acceptance and Quality Control Cavity fiducialization and alignment methodology Final cryomodule design acceptance by Fermilab • The Final Design Review must be formally endorsed by Fermilab • Licensing and certification • Work in progress in understanding ASME versus PED for pressurized vessels and piping. • Transportation • The transport frame design must be endorsed by Fermilab • Road test instrumentation • System Acceptance Review (SAR 1) • SAR 1 after assembly and before the RF test: a joint review procedure is needed. Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 8
CEA-Fermilab Interfaces Relevant to this Preliminary Design Review • A lot of information and lessons learnt with be gathered from the HB 650 prototype cryomodule assembly and test. CEA intend to ‘participate’. • Some of these interface issues will be addressed during the Preliminary Design Review • All these interfaces need to be thoroughly understood and solved in time of the Final Design Review. Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 9
LB 650 Schedule: P 6 compatible LB 650 pre-production CM 0 • Assembly (6 months) • RF Tests (3 months) • Transport + Tests RF at Fermilab LB 650 production CM 1 to CM 9 • Assembly (3 months) • RF Tests (1 month) Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 10
CEA Organization Chart Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 11
Concluding Remarks u CEA Team is experienced, with involvement in the preceding and ongoung projects like XFEL, IFMIF, ESS, SARAF u The design team is being reinforced with the current effort to recruit two designers u The current design effort is in line with issuing components specifications and launching procurement beginning of 2022. Commissariat à l’énergie atomique et aux énergies alternatives Olivier NAPOLY 8 Mars 2021 12
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